<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<link rel="stylesheet" type="text/css" href="../../common.css"/>
		<style>
			button{
				display: none;
			}
			input{
				display: none;
			}
			#one:checked~label{
				display: none;
			}
			#one:checked~button{
				display: block;
			}
		</style>
	</head>
	<body>
		<input type="checkbox" id="one"/>
		<label for="one">点击</label>
		<button class="btn btn_h_30 btn_w_50 font_87_13">虎牙</button>
	</body>
</html>
